Response to Alpelisib in an Adolescent With PIK3CA-Mutated Metastatic Gastrointestinal Stromal Tumor

Affiliations

• ¹ Division of Hematology/Oncology, The Hospital for Sick Children, Department of Paediatrics, University of Toronto, Toronto, ON, Canada.
• ² Division of Pathology and Laboratory Medicine, The Hospital for Sick Children, Department of Laboratory Medicine and Pathology, University of Toronto, Toronto, ON, Canada.
• ³ Division of General and Thoracic Surgery, The Hospital for Sick Children, Department of Surgery, University of Toronto, Toronto, ON, Canada.
• ⁴ Department of Pathology, Boston Children's Hospital, Boston, MA.
• ⁵ Diagnostic Imaging, The Hospital for Sick Children, Toronto, ON, Canada.